A turbocharger detection device for an automobile

Abstract

The application belongs to the technical field of turbocharger detection, and particularly relates to a turbocharger detection device for automobiles, which comprises a containing base, the upper surface of the containing base is uniformly provided with a clamping device, the containing base comprises a plane box, and the front and rear sides of the outer surface of the plane box are symmetrically fixed with outer support frames. Since the turbocharger is located in the internal area of the upper closed shell during the whole working process, the upper closed shell is clamped with the containing groove, the sealing property of the detection environment of the turbocharger is ensured, the turbocharger will not be disturbed by the outside, when the turbocharger is pressurized, the outer surface of the turbocharger will be limited by the clamped upper closed shell, and the internal buffer inner pressure plate is used for shock absorption and buffering, the gas of the turbocharger pressurization will be certainly introduced into the pressure receiving area, so the adverse phenomenon that the connection part of the exhaust port and the detection component is prone to loosening and then gas leakage and pressure relief occurs will not occur, and the safety of the pressurization gas conveying work can be fully ensured.

Description

Technical Field

[0001] This invention belongs to the field of turbocharger testing technology, specifically a testing device for automotive turbochargers. Background Technology

[0002] A turbocharger is essentially an air compressor that increases the intake air volume by compressing air. It utilizes the inertial force of the exhaust gases from the engine to drive a turbine in the turbine housing. The turbine, in turn, drives a coaxial impeller, which compresses the air supplied through the air filter and forces it into the cylinders. To ensure the stability of the turbocharger's performance, the boost power of each manufactured turbocharger needs to be tested to ensure it can perform stable boosting operations.

[0003] Since turbochargers are usually mass-produced and have a strong boosting effect when working, they not only need effective safety measures, but also relatively high testing efficiency. Moreover, turbochargers generate strong mechanical vibrations when working, and the connection between their exhaust port and the testing components is prone to loosening, leading to air leakage and pressure loss. Therefore, improvements are needed. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the technical solution adopted by this invention is: an automotive turbocharger testing device, comprising a housing base, wherein fastening devices are uniformly arranged on the upper surface of the housing base;

[0005] The holding base includes a flat box, with external support frames symmetrically fixed on the front and rear sides of the outer surface of the flat box. The upper surface of the flat box is uniformly provided with receiving grooves, and the middle of the inner cavity of the receiving groove is uniformly provided with a blocking partition. The middle of the inner cavity of the flat box is uniformly provided with a sealing device. The inner cavity of the flat box is uniformly provided with a pressure-bearing area, and the inner cavity of the flat box is uniformly provided with a pressure measuring device through the pressure-bearing area.

[0006] The fastening device includes a control base plate. Traction rods are symmetrically arranged at the top of the inner cavity of the control base plate. An upper sealing shell is fixedly connected to the top of the outer surface of each traction rod. The upper sealing shell is divided into a front turbocharger housing area, a middle connecting area, and a rear air-bearing area. Figure 4 As shown, the bottom of the upper closed shell can be perfectly fitted with the receiving groove. A spring rotating plate is provided in the middle of the inner cavity of the upper closed shell. An air intake pipe is fixedly connected to one side of the top of the inner cavity of the upper closed shell. The turbocharger draws in air from the outside and pressurizes it through the air intake pipe. A guide bolt sleeve is fixedly connected to the other side of the top of the inner cavity of the upper closed shell. A protective device is provided on the inner wall of the guide bolt sleeve. Buffer inner pressure plates are symmetrically arranged at the front of the inner wall of the upper closed shell.

[0007] Furthermore, the pressure measuring device includes a force-bearing slide, the diameter of which is adapted to the pressure zone, enabling complete sealing of the pressure zone. A resistance sleeve is fixedly connected to the lower surface of the force-bearing slide, allowing air to be injected into the inner cavity of the resistance sleeve to provide initial resistance, counteracting the weight of the force-bearing slide and preventing it from sliding down too quickly under pressure. A pressure-sensing bottom cylinder is fixedly connected to the bottom of the inner cavity of the resistance sleeve. A signal wire is slidably connected to the axis of the inner cavity of the force-bearing slide through a through-hole, and the bottom end of the signal wire is directly connected to the inner cavity of the pressure-sensing bottom cylinder for transmitting electrical signals from the pressure-sensing bottom cylinder to obtain test data.

[0008] Furthermore, the outer surface of the traction rod is slidably connected to the inner cavity of the planar box, and the top end of the traction rod extends to the outside of the planar box. The top end of the spring rotating plate is rotatably connected to the inner wall of the upper closed shell, and the bottom end of the spring rotating plate is pressed against the outer surface of the blocking partition. The bottom of the outer surface of the upper closed shell is inserted into the inner wall of the receiving groove. The outer surface of the pressure-sensing bottom cylinder is fixedly connected to the inner cavity of the planar box through the pressure area. The outer surface of the force-receiving slide is slidably connected to the inner cavity of the planar box through the pressure area. The top end of the signal wire extends to the outside of the upper closed shell.

[0009] Furthermore, the sealing device includes a control base box. Adaptive filling plates are evenly distributed on the upper part of the inner cavity of the control base box. A barrier sealing plate is fixedly connected to the upper part of the outer surface of the adaptive filling plate. An exhaust groove is opened at the front of the inner cavity of the planar box, and both ends of the exhaust groove extend to the outside of the planar box. The outer surface of the control base box is fixedly connected to the middle of the inner cavity of the planar box. The top of the adaptive filling plate extends to the outside of the planar box through an adaptive groove, and the upper surface of the barrier sealing plate is pressed against the top of the inner wall of the planar box. The inner cavity of the control base box is fixedly connected to the inner cavity of the pressure-sensing base cylinder through a control wire. The exhaust groove communicates with the receiving area where the control base box is located. When the adaptive filling plate is pulled down by the control base box, high-pressure gas enters the receiving area where the control base box is located and then exits through the exhaust groove, thereby achieving pressure relief.

[0010] Furthermore, the protective device includes a long threaded rod, the bottom end of which is fixedly connected to a metal sealing plate. The outer surface of the metal sealing plate perfectly matches the diameter of the pressure zone. When the metal sealing plate is inserted into the pressure zone, the top area of ​​the force-bearing slide is sealed off. At this time, even if the turbocharger continues to pressurize, the pressure will not act on the upper surface of the force-bearing slide, thus keeping the data measured by the pressure-sensing bottom cylinder unchanged. A rotary device is rotatably connected to the upper part of the outer surface of the protective device. The outer surface of the long threaded rod is threadedly connected to the inner wall of the guide bolt sleeve. The bottom end of the long threaded rod extends into the interior of the upper closed shell. The top end of the signal wire extends into the exterior of the long threaded rod, and the outer surface of the signal wire is fixedly connected to the inner wall of the long threaded rod.

[0011] Furthermore, the rotary device includes a threaded rod sleeve. Engaging wheels are symmetrically arranged on the front and rear sides of the inner cavity of the threaded rod sleeve. Torque motors are symmetrically arranged at the axis of the engagement wheels via control rods. Receiving ends are evenly distributed at the top of the inner cavity of the threaded rod sleeve. Adjusting rods are symmetrically arranged on the front and rear sides of the threaded rod sleeve. A control tensioner is fixedly connected to the bottom end of each adjusting rod. The bottom end of the control tensioner is fixedly connected to the outer surface of the upper closed shell. The outer surface of the engagement wheels is rotatably connected to the upper part of the outer surface of the long threaded rod. The middle part of the inner wall of the threaded rod sleeve is sleeved with the outer surface of the long threaded rod.

[0012] The beneficial effects of this invention are as follows:

[0013] 1. Since the turbocharger is located entirely within the upper sealed housing during operation, and the upper sealed housing is fastened to the receiving groove, the sealing of the testing environment where the turbocharger is located is guaranteed, and it will not be affected by external interference. When the turbocharger is pressurized, its outer surface is restricted by the fastened upper sealed housing, and is damped by the internal buffer pressure plate. The pressurized gas of the turbocharger will definitely enter the pressurized area, so there will be no loosening of the connection between its exhaust port and the testing component, which would lead to leakage and depressurization. This also fully ensures the safety of pressurized gas delivery.

[0014] 2. This device can divide turbochargers into several groups for unified testing. Based on the obtained data, it can determine the turbocharger's pressurization power and pressurization rate, and compare the results to determine if the turbocharger has a fault. Because there is a unidirectional rotating spring plate in the middle area of ​​the upper sealed shell, the pressurization work of the pressurized area will not be affected during the testing work. After the pressurization work is completed, the spring plate will separate the internal area of ​​the upper sealed shell, thereby preventing the air pressure inside the pressurized area from flowing back to the outside through the turbocharger and causing air leakage inside the device.

[0015] 3. When the turbocharger is pressurizing inside the device, the pressure is constantly monitored by the pressure-sensing bottom cylinder. When the pressure is too high, the intake pipe can be stopped in time to prevent the internal pressure from increasing further. The control bottom box in the middle opens the slot sealed by the adapter filling plate, allowing the high-pressure gas inside to be discharged through the exhaust groove in time, thus quickly reducing the pressure. This prevents the operator from being injured by the impact of the high-pressure gas inside when opening the upper enclosure.

[0016] 4. After the turbocharger has been pressurized to the critical value, the top area of ​​the force-bearing slide can be sealed with a metal sealing plate to lock the pressure on the force-bearing slide. If there is no air leakage inside the pressure zone, the pressure value of the pressure-sensing bottom cylinder will not change. This method eliminates the possibility of air leakage inside the pressure zone, ensures that the data obtained by the turbocharger is not distorted, prevents abnormal turbocharger test results due to system problems, and improves the reliability of the device. Attached Figure Description

[0017] Figure 1 This is the front view of the present invention;

[0018] Figure 2 This is a cross-sectional view of the present invention;

[0019] Figure 3 This is a cross-sectional view of the container base of the present invention;

[0020] Figure 4 This is a cross-sectional view of the fastening device of the present invention;

[0021] Figure 5 This is a schematic diagram of the pressure measuring device of the present invention;

[0022] Figure 6 This is a schematic diagram of the sealing device of the present invention;

[0023] Figure 7 This is a schematic diagram of the structure of the protective device of the present invention;

[0024] Figure 8 This is a cross-sectional view of the rotary device of the present invention.

[0025] In the diagram: 1. Receiving base; 2. Fastening device; 11. Flat box; 12. External support frame; 13. Receiving groove; 14. Blocking plate; 15. Sealing device; 16. Pressure zone; 17. Exhaust trough; 21. Control base plate; 22. Traction rod; 23. Upper enclosure; 24. Spring rotating plate; 25. Guide bolt sleeve; 26. Air inlet pipe; 27. Buffer inner pressure plate; 3. Pressure measuring device; 31. Pressure sensing base cylinder; 32. Resistance sleeve; 33. Force-bearing slide; 34. Signal wire; 151. Control base box; 152. Adaptive filling plate; 153. Barrier sealing plate; 4. Protective device; 41. Long threaded rod; 42. Metal sealing plate; 5. Twisting device; 51. Threaded rod sleeve; 52. Receiving end; 53. Engaging wheel; 54. Torque motor; 55. Adjusting rod; 56. Control tensioner. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

[0027] Example 1, please refer to Figures 1-5 The present invention provides a technical solution: an automotive turbocharger testing device, including a housing base 1, wherein fastening devices 2 are uniformly arranged on the upper surface of the housing base 1;

[0028] The base 1 includes a flat box 11. External support frames 12 are symmetrically fixed on the front and rear sides of the outer surface of the flat box 11. The upper surface of the flat box 11 is uniformly provided with receiving grooves 13. The middle of the inner cavity of the receiving grooves 13 is uniformly provided with baffles 14. The middle of the inner cavity of the flat box 11 is uniformly provided with sealing devices 15. The inner cavity of the flat box 11 is uniformly provided with pressure-bearing areas 16, and pressure measuring devices 3 are uniformly provided through the pressure-bearing areas 16 in the inner cavity of the flat box 11.

[0029] The fastening device 2 includes a control base plate 21. Traction rods 22 are symmetrically arranged on the top of the inner cavity of the control base plate 21. An upper sealed shell 23 is fixedly connected to the top of the outer surface of the traction rods 22. The upper sealed shell 23 is divided into a front turbocharger housing area, a middle connecting area, and a rear air-bearing area. Figure 4 As shown, the bottom of the upper closed shell 23 can be perfectly fitted to the receiving groove 13. A spring rotating plate 24 is provided in the middle of the inner cavity of the upper closed shell 23. An air intake pipe 26 is fixedly connected to one side of the top of the inner cavity of the upper closed shell 23. The turbocharger draws in air from the outside and pressurizes it through the air intake pipe 26. A guide bolt sleeve 25 is fixedly connected to the other side of the top of the inner cavity of the upper closed shell 23. A protective device 4 is provided on the inner wall of the guide bolt sleeve 25. Buffer inner pressure plates 27 are symmetrically arranged at the front of the inner wall of the upper closed shell 23.

[0030] The pressure measuring device 3 includes a force-receiving slide 33, which is adapted to the diameter of the pressure zone 16 and can completely seal the pressure zone 16. A resistance sleeve 32 is fixedly connected to the lower surface of the force-receiving slide 33, which can be pressurized by inflating the inner cavity of the resistance sleeve 32 to give the resistance sleeve 32 a certain initial resistance, counteracting the gravity of the force-receiving slide 33 and preventing the force-receiving slide 33 from sliding down too quickly when under pressure. A pressure-sensing bottom cylinder 31 is fixedly connected to the bottom of the inner cavity of the resistance sleeve 32. A signal wire 34 is slidably connected to the axis of the inner cavity of the force-receiving slide 33 through a through-hole. The bottom end of the signal wire 34 is directly connected to the inner cavity of the pressure-sensing bottom cylinder 31 to transmit the electrical signal of the pressure-sensing bottom cylinder 31 to obtain test data.

[0031] The outer surface of the traction rod 22 is slidably connected to the inner cavity of the flat box 11, and the top end of the traction rod 22 extends to the outside of the flat box 11. The top end of the spring rotating plate 24 is rotatably connected to the inner wall of the upper closed shell 23, and the bottom end of the spring rotating plate 24 is pressed against the outer surface of the blocking partition 14. The bottom of the outer surface of the upper closed shell 23 is inserted into the inner wall of the receiving groove 13. The outer surface of the pressure-sensing bottom cylinder 31 is fixedly connected to the inner cavity of the flat box 11 through the pressure area 16. The outer surface of the force-receiving slide 33 is slidably connected to the inner cavity of the flat box 11 through the pressure area 16. The top end of the signal wire 34 extends to the outside of the upper closed shell 23.

[0032] The device is used to perform centralized testing on newly produced turbochargers. The turbocharger array is placed in the front area of ​​the receiving groove 13 of the flat box 11. Then, the upper sealing shell 23 is pressed down by the traction rod 22 until the upper sealing shell 23 is completely sealed and connected with the receiving groove 13. At this time, the buffer inner pressure plate 27 and the upper surface of the turbocharger are pressed against each other, pressing and fixing the turbocharger. The turbocharger takes in air from the outside by connecting with the intake pipe 26 and is then ready to work.

[0033] After the turbocharger starts, it begins to pressurize the internal area of ​​the upper sealed shell 23. The air pressure pushes the spring rotating plate 24 to open the central opening area of ​​the upper sealed shell 23, and then enters the pressure zone 16 behind it. As the turbocharger continues to pressurize, the force-bearing slide plate 33 located inside the pressure zone 16 gradually squeezes the resistance sleeve 32 below and slides down under the action of air pressure, putting pressure on the pressure-sensing bottom cylinder 31. Then, the pressure-sensing bottom cylinder 31 transmits the pressure signal to the outside through the signal wire 34, thereby obtaining the pressurization data of the turbocharger in this area. Since each turbocharger pressurizes at the same power, the data of the pressure-sensing bottom cylinder 31 can be compared to determine its pressurization power and pressurization speed.

[0034] After the testing is completed, the turbocharger stops pressurizing. Then, the control base box 151 in the middle pulls the adapter filling plate 152 downward to open the slot in the middle of the flat box 11. At this time, the high-pressure gas enters the area where the control base box 151 is located and is discharged outward through the exhaust slots 17 on both sides, achieving the effect of depressurization in advance. Then, the upper closed shell 23 is opened and the turbocharger inside is taken out.

[0035] Example 2, please refer to Figures 1-8 The present invention provides a technical solution: Based on embodiment 1, the sealing device 15 includes a control base box 151, an adapter filling plate 152 is uniformly arranged on the upper part of the inner cavity of the control base box 151, a barrier sealing plate 153 is fixedly connected to the upper part of the outer surface of the adapter filling plate 152, and an exhaust groove 17 is opened at the front of the inner cavity of the flat box 11, and both ends of the exhaust groove 17 extend to the outside of the flat box 11. The outer surface of the control base box 151 is fixedly connected to the middle of the inner cavity of the flat box 11. The top of the adapter filling plate 152 extends to the outside of the flat box 11 through the adapter slot, and the upper surface of the barrier sealing plate 153 is pressed against the top of the inner wall of the flat box 11. The inner cavity of the control base box 151 is fixedly connected to the inner cavity of the pressure sensing cylinder 31 through the control wire. The exhaust groove 17 is connected to the receiving area where the control base box 151 is located. When the adapter filling plate 152 is pulled down by the control base box 151, the high pressure gas will enter the receiving area where the control base box 151 is located, and then be discharged through the exhaust groove 17, thereby realizing the pressure relief operation.

[0036] The protective device 4 includes a long threaded rod 41, with a metal sealing plate 42 fixedly connected to the bottom end of the long threaded rod 41. The outer surface of the metal sealing plate 42 is perfectly matched with the diameter of the pressure zone 16. When the metal sealing plate 42 is inserted into the pressure zone 16, the top area of ​​the force-bearing slide 33 is sealed off. At this time, the turbocharger continues to pressurize, but the pressure will not act on the upper surface of the force-bearing slide 33, thus keeping the data measured by the pressure-sensing bottom cylinder 31 unchanged. A rotary device 5 is rotatably connected to the upper part of the outer surface of the protective device 4. The outer surface of the long threaded rod 41 is threadedly connected to the inner wall of the guide bolt sleeve 25. The bottom end of the long threaded rod 41 extends into the interior of the upper closed shell 23. The top end of the signal wire 34 extends into the exterior of the long threaded rod 41, and the outer surface of the signal wire 34 is fixedly connected to the inner wall of the long threaded rod 41.

[0037] The rotary device 5 includes a threaded rod sleeve 51. Engaging wheels 53 are symmetrically arranged on the front and rear sides of the inner cavity of the threaded rod sleeve 51. Torque motors 54 are symmetrically arranged at the axis of the inner cavity of the engaging wheels 53 via control rods. Receiving ends 52 are evenly arranged on the top of the inner cavity of the threaded rod sleeve 51. Adjusting rods 55 are symmetrically arranged on the front and rear sides of the threaded rod sleeve 51. A control tensioner 56 is fixedly connected to the bottom end of the adjusting rod 55. The bottom end of the control tensioner 56 is fixedly connected to the outer surface of the upper closed shell 23. The outer surface of the engaging wheels 53 is rotatably connected to the upper part of the outer surface of the long threaded rod 41. The middle part of the inner wall of the threaded rod sleeve 51 is sleeved with the outer surface of the long threaded rod 41.

[0038] During testing, the turbocharger is pressurized to a certain level and then pressurization is stopped. At this time, the upper sealing shell 23 is under high pressure. Then, the rotating device 5 controls the long threaded rod 41 to rotate clockwise along the guide bolt sleeve 25, gradually pushing the metal sealing plate 42 downward. At this time, the metal sealing plate 42 is inserted into the interior of the pressure zone 16, sealing the top area of ​​the force-bearing slide 33. Then, the pressure on the force-bearing slide 33 is constant, so the pressure value of the pressure-sensing bottom cylinder 31 will not change. If the verticality of the pressure-sensing bottom cylinder 31 changes at this time, it means that there is an air leakage problem inside the pressure zone 16. Therefore, the data obtained by the turbocharger is distorted, which is not necessarily a problem with the turbocharger itself. It is necessary to eliminate the system fault of the device and then conduct the test again.

[0039] The threaded rod sleeve 51 drives the long threaded rod 41 to rotate through the meshing rollers 53 on both sides. At the same time, in order to ensure that the threaded rod sleeve 51 can move vertically in sync with the long threaded rod 41, the control pullers 56 on both sides will pull the threaded rod sleeve 51 to move through the adjustment pull rod 55, so that the meshing rollers 53 can always be in contact with the outer surface of the long threaded rod 41 to perform torsional control.

[0040] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A testing device for an automotive turbocharger, comprising a housing base (1), wherein fastening devices (2) are uniformly arranged on the upper surface of the housing base (1), characterized in that: The holding base (1) includes a flat box (11), and an outer support frame (12) is symmetrically fixed on the front and rear sides of the outer surface of the flat box (11). A receiving groove (13) is uniformly arranged on the upper surface of the flat box (11). A blocking partition (14) is uniformly arranged in the middle of the inner cavity of the receiving groove (13). A sealing device (15) is uniformly arranged in the middle of the inner cavity of the flat box (11). A pressure-bearing area (16) is uniformly opened in the inner cavity of the flat box (11), and a pressure measuring device (3) is uniformly arranged in the inner cavity of the flat box (11) through the pressure-bearing area (16). The fastening device (2) includes a control base plate (21). A traction rod (22) is symmetrically arranged at the top of the inner cavity of the control base plate (21). An upper closed shell (23) is fixedly connected to the top of the outer surface of the traction rod (22). A spring rotating plate (24) is arranged in the middle of the inner cavity of the upper closed shell (23). An air inlet pipe (26) is fixedly connected to one side of the top of the inner cavity of the upper closed shell (23). A guide bolt sleeve (25) is fixedly connected to the other side of the top of the inner cavity of the upper closed shell (23). A protective device (4) is arranged on the inner wall of the guide bolt sleeve (25). A buffer inner pressure plate (27) is symmetrically arranged at the front of the inner wall of the upper closed shell (23). The pressure measuring device (3) includes a force-receiving slide (33), a resistance sleeve (32) is fixedly connected to the lower surface of the force-receiving slide (33), a pressure-sensing bottom cylinder (31) is fixedly connected to the bottom of the inner cavity of the resistance sleeve (32), and a signal wire (34) is slidably connected to the axis of the inner cavity of the force-receiving slide (33) through a through-hole. The outer surface of the traction rod (22) is slidably connected to the inner cavity of the flat box (11), and the top end of the traction rod (22) extends to the outside of the flat box (11). The top end of the spring rotating plate (24) is rotatably connected to the inner wall of the upper closed shell (23). The bottom end of the spring rotating plate (24) is pressed against the outer surface of the blocking partition (14). The bottom of the outer surface of the upper closed shell (23) is inserted into the inner wall of the receiving groove (13), the outer surface of the pressure-sensing bottom cylinder (31) is fixedly connected to the inner cavity of the flat box (11) through the pressure area (16), the outer surface of the force-bearing slide (33) is slidably connected to the inner cavity of the flat box (11) through the pressure area (16), and the top end of the signal wire (34) extends to the outside of the upper closed shell (23).

2. The automotive turbocharger testing device according to claim 1, characterized in that: The sealing device (15) includes a control base box (151), and an adapter filling plate (152) is evenly arranged on the upper part of the inner cavity of the control base box (151). A barrier sealing plate (153) is fixedly connected to the upper part of the outer surface of the adapter filling plate (152). An exhaust groove (17) is opened at the front of the inner cavity of the flat box (11), and both ends of the exhaust groove (17) extend to the outside of the flat box (11).

3. The automotive turbocharger testing device according to claim 2, characterized in that: The outer surface of the control base box (151) is fixedly connected to the middle of the inner cavity of the flat box (11). The top of the adapter filling plate (152) extends to the outside of the flat box (11) through the adapter slot, and the upper surface of the barrier sealing plate (153) is pressed against the top of the inner wall of the flat box (11). The inner cavity of the control base box (151) is fixedly connected to the inner cavity of the pressure sensing cylinder (31) through the control wire.

4. The automotive turbocharger testing device according to claim 1, characterized in that: The protective device (4) includes a long threaded rod (41), the bottom end of which is fixedly connected to a metal sealing plate (42), and a rotary device (5) is rotatably connected to the upper part of the outer surface of the protective device (4). The outer surface of the long threaded rod (41) is threadedly connected to the inner wall of the guide bolt sleeve (25). The bottom end of the long threaded rod (41) extends into the interior of the upper closed shell (23), and the top end of the signal wire (34) extends into the exterior of the long threaded rod (41). The outer surface of the signal wire (34) is fixedly connected to the inner wall of the long threaded rod (41).

5. The automotive turbocharger testing device according to claim 4, characterized in that: The rotary device (5) includes a threaded rod sleeve (51), with engagement wheels (53) symmetrically arranged on the front and rear sides of the inner cavity of the threaded rod sleeve (51). A torque motor (54) is symmetrically arranged at the axis of the inner cavity of the engagement wheel (53) via a control rod. A receiving end (52) is evenly arranged at the top of the inner cavity of the threaded rod sleeve (51). Adjusting rods (55) are symmetrically arranged on the front and rear sides of the threaded rod sleeve (51). A control tensioner (56) is fixedly connected to the bottom end of the adjusting rod (55).

6. The automotive turbocharger testing device according to claim 5, characterized in that: The bottom end of the control tensioner (56) is fixedly connected to the outer surface of the upper closed shell (23), the outer surface of the engagement wheel (53) is rotatably connected to the upper part of the outer surface of the long threaded rod (41), and the middle part of the inner wall of the threaded rod sleeve (51) is sleeved with the outer surface of the long threaded rod (41).

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